Nanostructured CdO thin films for LPG and CO sub( 2) gas sensor prepared by spray pyrolisis technique

Nanostructured CdO thin films were deposited by spray pyrolysis techniques at different spray deposition time on glass substrates. The nanostructured CdO thin films was prepared using 0.05 M of cadmium acetate dehydrate (CH3COO) 2Cd.2H2O was dissolved in the deionised water. These thin films were an...

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Bibliographic Details
Published inInternational letters of chemistry, physics and astronomy Vol. 18; p. 31
Main Authors Bari, R H, Patil, S B
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
Crystallites
Dissolution
Gas sensors
LPG
Nanostructure
Operating temperature
Spray deposition
Thin films
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Summary:Nanostructured CdO thin films were deposited by spray pyrolysis techniques at different spray deposition time on glass substrates. The nanostructured CdO thin films was prepared using 0.05 M of cadmium acetate dehydrate (CH3COO) 2Cd.2H2O was dissolved in the deionised water. These thin films were annealing in air at temperatures 500 degree C for 60 minutes. The thickness of the films, crystallite and grain size were observed to increase with the increase in spray deposition time. As prepared, thin films were characterized using XRD, FE-SEM and EDAX. The XRD analysis shows that CdO films were cubic structured. The electrical and gas sensing properties of these films were investigated. The prepared nanostructure CdO thin films show LPG (S = 1,600) and CO2 (S = 435) gas response at different operating temperature. Gas response, selectivity, response and recovery time of the sensor were measured and presented.
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ISSN:2299-3843